XF Premium Chat 2 by Siropu 2.5.1

Replaced ChatGPT, xAI and DeepSeek with OpenRouter API where you can choose from various AI models.

Added DeepSeek as a new option for /ai command.

Fixed an issue with thread notifications when threads require approval.
Fixed an issue with chat bar disappearing on mobile when editor is focused.

Fixed an issue with room reactions disappearing on chat refresh.
Fixed an issue with /help command not working.